// Browser/WASM entry point for the CuffScript engine.

// Compiled by `make wasm` (see Makefile). Not part of the native `cuffc` build.

//

// print()/input() inside the interpreter talk to std::cout/std::cin as usual

// (see engine/interpreter/NativeFunctions.h); the Emscripten runtime forwards

// those through the `print` / `stdin` callbacks the host page passes in when

// instantiating the module, so no engine code changes were needed here.

#include <emscripten/bind.h>

#include "../engine/CuffEngine.h"

using namespace emscripten;

struct RunOutcome

{

bool success;

std::string error;

};

static RunOutcome toOutcome(const cuff::CuffEngine::Result &result)

{

return RunOutcome{result.success, result.error};

}

// Parses and executes `source`. `scriptDir` resolves relative

// `use <name> from <path>` imports against the virtual filesystem

// (see FS.mkdirTree/writeFile on the JS side).

RunOutcome cuffRun(const std::string &source, const std::string &scriptDir)

{

return toOutcome(cuff::CuffEngine::execute(source, scriptDir));

}

// Parses `source` only and writes the token/AST dump to stdout, mirroring

// `cuffc --ast`. Used by the IDE's "AST 보기" panel.

RunOutcome cuffDump(const std::string &source)

{

cuff::CuffEngine::Result result = cuff::CuffEngine::run(source);

cuff::CuffEngine::debugDump(result);

return toOutcome(result);

}

EMSCRIPTEN_BINDINGS(cuffscript_wasm)

{

value_object<RunOutcome>("RunOutcome")

.field("success", &RunOutcome::success)

.field("error", &RunOutcome::error);

function("cuffRun", &cuffRun);

function("cuffDump", &cuffDump);

}